Geochemical and granulometric normalization for heavy metals in bottom sediments off Alexandria, Egypt  <B>Geochemical and granulometric normalization for heavy metals in bottom sediments off Alexandria, Egypt</B><P>S.M. Nasr</B><I><P> Institute of Graduate Studies and Research, Alexandria University, Department of Environmental Studies, Alexandria, Egypt</I><P> Abstract<P> Heavy metal analysis as well as organic matter content, total carbonate and mean grain size have been determined for the bottom sediments off the area covers the coastal strip of Alexandria recreational waters. In the present study, granulometric and geochemical normalization procedure is used for identifying anomalous metal concentrations as well as factors that control the heavy metals, variability in the investigated bottom sediments. Application of normalization procedure revealed that considerable portions of the heavy metals of Alexandria bottom sediments are of anthropogenic origin.<P>